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CVE-2025-71227

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't WARN for connections on invalid channels It's not clear (to me) how exactly syzbot managed to hit this, b…

Published Feb 18, 2026EPSS 0.12%

Overview

CVE-2025-71227 is a medium-severity vulnerability. It was published on February 18, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: don't WARN for connections on invalid channels

It's not clear (to me) how exactly syzbot managed to hit this,

but it seems conceivable that e.g. regulatory changed and has

disabled a channel between scanning (channel is checked to be

usable by cfg80211_get_ies_channel_number) and connecting on

the channel later.

With one scenario that isn't covered elsewhere described above,

the warning isn't good, replace it with a (more informative)

error message.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/10d3ff7e5812c8d70300f6fa8f524009a06aa7e1Refgit.kernel.org/stable/c/99067b58a408a384d2a45c105eb3dce980a862ce

How CyberStrike helps

Frequently asked questions

What is CVE-2025-71227?

CVE-2025-71227 is a medium-severity vulnerability. It was published on February 18, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-71227?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-71227?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-71227?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-71227 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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